:root {
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --ink: #1f2937;
  --muted: #6b7280;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --line: #e5e7eb;
  --navy: #0f172a;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

img {
  max-width: 100%;
  display: block;
}

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: 0.25s ease;
}

body {
  font-family: "Arimo", sans-serif;
  color: var(--ink);
  background: var(--surface-soft);
  line-height: 1.6;
}

section {
  padding: 88px 0;
}

.title {
  margin: 0 auto 46px;
  text-align: center;
  max-width: 760px;
  padding: 0 16px;
}

.title h1 {
  font-size: 2.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--ink);
}

.title p {
  color: var(--muted);
  font-size: 1rem;
}

header {
  background: var(--navy);
  padding: 12px 0;
}

header p {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #d1d5db;
  font-size: 0.95rem;
  margin-right: 16px;
}

header p a {
  color: #f9fafb;
}

header p a:hover,
header .reg a:hover {
  color: var(--primary);
}

header .reg {
  display: block;
  text-align: right;
  margin-right: 0;
  font-weight: 700;
}

header .reg a {
  color: #f9fafb;
}

nav.navbar {
  padding: 18px 0;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

nav .navbar-brand img {
  height: 52px;
  width: auto;
}

nav .navbar-nav .nav-link {
  font-size: 1rem;
  font-weight: 700;
  color: #334155;
  padding: 0.65rem 0.95rem;
}

nav .navbar-nav .nav-link:hover {
  color: var(--primary);
}

nav .navbar-toggler {
  border: 1px solid #cbd5e1;
  padding: 7px 10px;
}

nav .navbar-toggler:focus {
  box-shadow: 0 0 0 0.18rem rgba(245, 158, 11, 0.22);
}

nav .navbar-toggler i {
  color: #334155;
  font-size: 1.1rem;
}

#banner-part {
  padding: 0;
}

#banner-part .banner {
  min-height: 74vh;
  background: url("../images/banner1.png") no-repeat center / cover;
}

#banner-part .banner2 {
  background-image: url("../images/Banner-02.jpg");
}

#banner-part .banner3 {
  background-image: url("../images/banner_03.jpg");
}

#banner-part .banner .overlay {
  min-height: 74vh;
  width: 100%;
  display: flex;
  align-items: center;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.36) 100%);
  color: #fff;
}

#banner-part .banner .overlay .container {
  padding: 78px 15px;
}

#banner-part .banner .overlay h2 {
  font-size: 2.1rem;
  font-weight: 600;
  text-transform: uppercase;
}

#banner-part .banner .overlay h3 {
  font-size: 3rem;
  font-weight: 700;
  text-transform: uppercase;
  margin: 6px 0 16px;
  max-width: 680px;
}

#banner-part .banner .overlay p {
  max-width: 620px;
  color: #f1f5f9;
}

#banner-part .banner .overlay a {
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 700;
  margin-right: 10px;
  margin-top: 18px;
}

#banner-part .banner .overlay .start {
  background: var(--primary);
  color: #fff;
}

#banner-part .banner .overlay .start:hover {
  background: var(--primary-dark);
}

#banner-part .banner .overlay .tour {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

#banner-part .banner .overlay .tour:hover {
  background: rgba(255, 255, 255, 0.24);
}

#banner-part .prev,
#banner-part .next,
#course-part .prev,
#course-part .next,
#testimonial-part .prev,
#testimonial-part .next {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid #cbd5e1;
  background: #fff;
  color: #334155;
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 2;
  transition: 0.2s ease;
}

#banner-part .prev:hover,
#banner-part .next:hover,
#course-part .prev:hover,
#course-part .next:hover,
#testimonial-part .prev:hover,
#testimonial-part .next:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

#banner-part .prev,
#banner-part .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

#banner-part .prev {
  left: 20px;
}

#banner-part .next {
  right: 20px;
}

#about-part {
  padding-top: 76px;
}

#about-part .rev_slider {
  margin: 0 auto;
  max-width: 520px;
}

#about-part .rev_slide img {
  border-radius: 14px;
  box-shadow: var(--shadow);
}

#about-part .rev_slider .slick-slide {
  padding: 8px;
  opacity: 0.5;
  transform: scale(0.94);
  transition: 0.3s ease;
}

#about-part .rev_slider .slick-center,
#about-part .rev_slider .slick-snext,
#about-part .rev_slider .slick-sprev {
  opacity: 1;
  transform: scale(1);
}

#about-part .rev_slider .slick-dots {
  margin-top: 12px;
  text-align: center;
}

#about-part .rev_slider .slick-dots li {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
  margin: 0 4px;
  font-size: 0;
}

#about-part .rev_slider .slick-dots .slick-active {
  width: 24px;
  border-radius: 20px;
  background: var(--primary);
}

#about-part .text-part {
  padding: 8px 0 0 16px;
}

#about-part .text-part p {
  margin-bottom: 14px;
  color: #475569;
}

#about-part .text-part a {
  margin-top: 6px;
  padding: 11px 20px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
}

#about-part .text-part a:hover {
  background: var(--primary-dark);
}

#counter-part {
  padding: 48px 0;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

#counter-part .item {
  text-align: center;
  padding: 16px 10px;
}

#counter-part .item h2 {
  color: #fff;
  font-size: 2.1rem;
  margin-bottom: 4px;
}

#counter-part .item p {
  color: #cbd5e1;
  margin-bottom: 14px;
}

#counter-part .item img {
  margin: 0 auto;
  opacity: 0.7;
}

#course-part .course-slider .item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  margin: 14px 10px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

#course-part .course-slider .slick-list {
  margin: 0 -10px;
}

#course-part .item .img {
  position: relative;
}

#course-part .item .img > img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

#course-part .item .img .overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.56);
  display: grid;
  place-items: center;
  opacity: 0;
}

#course-part .item:hover .img .overlay {
  opacity: 1;
}

#course-part .item .img .overlay a {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: #fff;
  font-size: 1.15rem;
}

#course-part .introduction {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

#course-part .intro-img img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
}

#course-part .name {
  flex: 1;
}

#course-part .name p {
  font-size: 0.82rem;
  color: var(--muted);
}

#course-part .name h2 {
  font-size: 1rem;
  margin-top: 2px;
}

#course-part .rating ul {
  display: flex;
  gap: 2px;
  color: var(--primary);
  font-size: 0.8rem;
  margin-bottom: 2px;
}

#course-part .rating p {
  font-size: 0.78rem;
  color: var(--muted);
}

#course-part .details {
  padding: 18px;
}

#course-part .details h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

#course-part .details p {
  color: #64748b;
  font-size: 0.95rem;
}

#course-part .duration {
  padding: 0 18px 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

#course-part .duration p {
  font-size: 0.78rem;
  color: var(--muted);
}

#course-part .duration h5 {
  font-size: 0.92rem;
  margin-top: 2px;
}

#course-part .prev,
#course-part .next,
#testimonial-part .prev,
#testimonial-part .next {
  position: absolute;
  top: -58px;
}

#course-part .prev,
#testimonial-part .prev {
  right: 54px;
}

#course-part .next,
#testimonial-part .next {
  right: 8px;
}

#course-part .slick-dots,
#testimonial-part .slick-dots,
#footer-img .slick-dots,
#banner-part .slick-dots,
.teacher-slider .slick-dots {
  text-align: center;
  margin-top: 12px;
}

#course-part .slick-dots li,
#testimonial-part .slick-dots li,
#footer-img .slick-dots li,
#banner-part .slick-dots li,
.teacher-slider .slick-dots li {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
  margin: 0 4px;
  font-size: 0;
}

#course-part .slick-dots .slick-active,
#testimonial-part .slick-dots .slick-active,
#footer-img .slick-dots .slick-active,
#banner-part .slick-dots .slick-active,
.teacher-slider .slick-dots .slick-active {
  width: 24px;
  border-radius: 20px;
  background: var(--primary);
}

#testimonial-part {
  background: #f1f5f9;
}

#testimonial-part .test_slide img {
  border-radius: 12px;
  width: 100%;
  height: 360px;
  object-fit: cover;
}

#testimonial-part .details-slider .details {
  background: var(--surface);
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 24px;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#testimonial-part .details-slider .details p {
  color: #475569;
  margin-bottom: 14px;
}

#testimonial-part .details-slider .details h2 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

#testimonial-part .details-slider .details h2 span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 400;
}

#testimonial-part .details-slider .details ul {
  display: flex;
  gap: 4px;
  color: var(--primary);
}

#testimonial-part .accordion-item {
  border: 1px solid var(--line);
  margin-bottom: 12px;
  border-radius: 10px;
  overflow: hidden;
}

#testimonial-part .accordion-button {
  padding: 14px 16px;
  background: #fff;
  box-shadow: none;
}

#testimonial-part .accordion-button .faq-title {
  font-size: 1rem;
  margin: 0;
  font-weight: 700;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 8px;
}

#testimonial-part .accordion-button:not(.collapsed) {
  background: #fff7ed;
}

#testimonial-part .accordion-button::after {
  display: none;
}

#testimonial-part .accordion-body {
  color: #475569;
}

#teacher-part {
  background: var(--surface);
}

#teacher-part .teacher-slider .item {
  margin: 12px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
}

#teacher-part .teacher-slider .slick-list {
  margin: 0 -10px;
}

#teacher-part .item .img img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

#teacher-part .item .text {
  text-align: center;
  padding: 18px 14px 20px;
}

#teacher-part .item .text ul {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
}

#teacher-part .item .text ul a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid #d1d5db;
  color: #475569;
}

#teacher-part .item .text ul a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

#teacher-part .item .text h3 {
  font-size: 1.08rem;
  margin-bottom: 4px;
}

#teacher-part .item .text p {
  color: var(--muted);
  font-size: 0.93rem;
}

#blog-header {
  background: linear-gradient(135deg, #e2e8f0 0%, #f8fafc 100%);
  padding-bottom: 54px;
}

#blog-header .title.blog {
  margin-bottom: 0;
}

#blog-part {
  padding-top: 52px;
}

#blog-part .big,
#blog-part .small {
  margin-bottom: 24px;
}

#blog-part .img,
#footer-img .img {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
}

#blog-part .img > img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

#blog-part .small .img > img {
  height: 260px;
}

#blog-part .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.12), rgba(15, 23, 42, 0.82));
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px;
  opacity: 0;
}

#blog-part .img:hover .overlay {
  opacity: 1;
}

#blog-part .icon ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}

#blog-part .icon a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.17);
}

#blog-part .icon a:hover {
  background: var(--primary);
}

#blog-part .text h2 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

#blog-part .text h3 {
  font-size: 0.9rem;
  color: #cbd5e1;
}

#blog-part .text-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  font-size: 0.82rem;
}

#blog-part .text-footer a {
  color: #e2e8f0;
}

#blog-part .text-footer a:hover {
  color: #fff;
}

#contact-part {
  background: #0b1220;
  color: #dbe4ef;
  padding-bottom: 56px;
}

#contact-part h2 {
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: 20px;
}

#contact-part .left .logo {
  margin-bottom: 18px;
}

#contact-part .left p {
  margin-bottom: 12px;
  color: #a8bacf;
}

#contact-part .left ul {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}

#contact-part .left ul a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid #344255;
}

#contact-part .left ul a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

#contact-part .center .link {
  display: flex;
  gap: 28px;
}

#contact-part .center li + li,
#contact-part .right .location + .phone,
#contact-part .right .phone + .email {
  margin-top: 10px;
}

#contact-part .center a {
  color: #bfd0e2;
}

#contact-part .center a:hover {
  color: var(--primary);
}

#contact-part .right .location,
#contact-part .right .phone,
#contact-part .right .email {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

#contact-part .right > div > a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid #344255;
  display: grid;
  place-items: center;
  color: #dbe4ef;
  flex-shrink: 0;
}

#contact-part .right h3 {
  font-size: 1rem;
  margin-bottom: 4px;
  color: #fff;
}

#contact-part .right p {
  color: #9bb0c7;
  font-size: 0.93rem;
}

#footer-img {
  padding: 0;
}

#footer-img .img img {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

#footer-img .img .overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(15, 23, 42, 0.64);
  opacity: 0;
}

#footer-img .img:hover .overlay {
  opacity: 1;
}

#footer-img .img .overlay a {
  color: #fff;
  font-weight: 700;
}

footer {
  background: #020617;
  color: #94a3b8;
  text-align: center;
  padding: 14px 12px;
  font-size: 0.94rem;
}

footer span {
  color: var(--primary);
  font-weight: 700;
}

.auth-page {
  min-height: 100vh;
  background: radial-gradient(circle at 0% 0%, #e2e8f0 0%, #f8fafc 50%, #eef2ff 100%);
}

.auth-shell {
  padding: 56px 0;
}

.auth-wrap {
  max-width: 1000px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.auth-hero {
  background: linear-gradient(140deg, #0f172a 0%, #1e293b 60%, #334155 100%);
  color: #fff;
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-hero img {
  width: 150px;
  margin-bottom: 22px;
}

.auth-hero h1 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.auth-hero p {
  color: #cbd5e1;
  max-width: 350px;
}

.auth-form-wrap {
  padding: 42px;
}

.auth-form-wrap h2 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.auth-form-wrap > p {
  color: var(--muted);
  margin-bottom: 22px;
}

.auth-form .field + .field {
  margin-top: 14px;
}

.auth-form label {
  font-size: 0.92rem;
  color: #475569;
  margin-bottom: 6px;
  display: inline-block;
}

.auth-form input {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 11px 13px;
  outline: none;
  background: #fff;
}

.auth-form input:focus {
  border-color: #f6ad37;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.auth-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-top: 14px;
}

.auth-row .remember {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #475569;
  font-size: 0.9rem;
}

.auth-row .remember input {
  width: auto;
}

.auth-row .forgot {
  color: #0f4ca8;
  font-size: 0.9rem;
}

.auth-row .forgot:hover {
  color: #0b3b85;
}

.auth-btn {
  width: 100%;
  border: 0;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  border-radius: 10px;
  padding: 12px;
  margin-top: 20px;
}

.auth-btn:hover {
  background: var(--primary-dark);
}

.auth-switch {
  margin-top: 18px;
  text-align: center;
  color: var(--muted);
}

.auth-switch a {
  color: #0f4ca8;
  font-weight: 700;
}

.auth-switch a:hover {
  color: #0b3b85;
}

@media (max-width: 1199.98px) {
  section {
    padding: 72px 0;
  }

  #banner-part .banner .overlay h3 {
    font-size: 2.5rem;
  }

  #contact-part .center .link {
    gap: 16px;
  }
}

@media (max-width: 991.98px) {
  header .col-md-3,
  header .col-md-9 {
    text-align: center;
  }

  header p,
  header .reg {
    display: block;
    margin-right: 0;
    margin-bottom: 6px;
    text-align: center;
  }

  nav .navbar-nav .nav-link {
    padding-left: 0;
  }

  #banner-part .banner,
  #banner-part .banner .overlay {
    min-height: 64vh;
  }

  #banner-part .banner .overlay h2 {
    font-size: 1.8rem;
  }

  #banner-part .banner .overlay h3 {
    font-size: 2.2rem;
  }

  #about-part .text-part {
    margin-top: 24px;
    padding-left: 0;
  }

  #testimonial-part .details-slider .details,
  #testimonial-part .test_slide img {
    min-height: 300px;
    height: auto;
  }

  #contact-part .left,
  #contact-part .center {
    margin-bottom: 28px;
  }

  .auth-wrap {
    grid-template-columns: 1fr;
  }

  .auth-hero {
    padding: 32px;
  }
}

@media (max-width: 767.98px) {
  section {
    padding: 62px 0;
  }

  .title h1 {
    font-size: 1.8rem;
  }

  #banner-part .banner .overlay .container {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  #banner-part .banner .overlay h2 {
    font-size: 1.5rem;
  }

  #banner-part .banner .overlay h3 {
    font-size: 1.9rem;
  }

  #banner-part .prev,
  #banner-part .next {
    display: none !important;
  }

  #course-part .prev,
  #course-part .next,
  #testimonial-part .prev,
  #testimonial-part .next {
    display: none !important;
  }

  #course-part .duration {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  #blog-part .img > img,
  #blog-part .small .img > img {
    height: 240px;
  }

  #blog-part .text h2 {
    font-size: 1rem;
  }

  .auth-form-wrap {
    padding: 30px 22px;
  }

  .auth-hero {
    padding: 28px 22px;
  }
}

@media (max-width: 575.98px) {
  nav .navbar-brand img {
    height: 44px;
  }

  #banner-part .banner .overlay h3 {
    font-size: 1.55rem;
  }

  #banner-part .banner .overlay p {
    font-size: 0.92rem;
  }

  #counter-part .item {
    padding: 12px 0;
  }

  #contact-part .center .link {
    flex-direction: column;
    gap: 8px;
  }

  .auth-shell {
    padding: 24px 0;
  }

  .auth-form-wrap h2 {
    font-size: 1.5rem;
  }
  
}